Regio and diastereoselective multicomponent 1,3-dipolar cycloadditions between prolinate hydrochlorides, aldehydes and dipolarophiles for the direct synthesis of pyrrolizidines

1. Mancebo-Aracil, J.
2. Nájera, C.
3. Castelló, L.M.
4. Sansano, J.M.
5. Larrañaga, O.
6. De Cózar, A.
7. Cossío, F.P.